October 30, 2026

CVE Watchtower

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CVE-2026-34910NVD

Vulnerability Summary

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
Severity Level
CRITICAL(10.0)
Published Date
May 22, 2026
Last Modified
Jul 23, 2026
PoC
Available(Nuclei)
Exploitation Status
ACTIVE
EPSS Score (30-Day)
86.96%Probability
Root Weakness (CWE)
CWE-20: Improper Input Validation ↗
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required.
CVSS v3.1 Base Metrics — Score 10.0 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Ui Unifi Os Server < 5.0.8
  • Ui Unifi Cloud Gateway Industrial Firmware < 5.1.12
  • Ui Unifi Dream Machine Firmware < 5.1.12
  • Ui Unifi Dream Machine Pro Firmware < 5.1.12
  • Ui Unifi Dream Machine Special Edition Firmware < 5.1.12
  • Ui Unifi Dream Machine Pro Max Firmware < 5.1.12
  • Ui Enterprise Fortress Gateway Firmware < 5.1.12
  • Ui Unifi Dream Wall Firmware < 5.1.12
  • Ui Unifi Dream Router Firmware < 5.1.12
  • Ui Unifi Dream Router 7 Firmware < 5.1.12
  • Ui Unifi Express 7 Firmware < 5.1.12
  • Ui Unifi Network Video Recorder Firmware < 5.1.12
  • Ui Unifi Network Video Recorder Pro Firmware < 5.1.12
  • Ui Unifi Network Video Recorder Instant Firmware < 5.1.12
  • Ui Enterprise Network Video Recorder Firmware < 5.1.12
  • Ui Unifi Cloud Gateway Ultra Firmware < 5.1.12
  • Ui Unifi Cloud Gateway Max Firmware < 5.1.12
  • Ui Unifi Cloud Gateway Fiber Firmware < 5.1.12
  • Ui Unifi Dream Router 5g Max Firmware < 5.1.12
  • Ui Enterprise Network Video Recorder Core Firmware < 5.1.12
  • Ui Unifi Cloud Key Plus Firmware < 5.1.12
  • Ui Unifi Cloudkey Firmware < 5.1.12
  • Ui Unifi Cloudkey Enterprise Firmware < 5.1.12
  • Ui Unifi Network Video Recorder G2 Firmware < 5.1.12
  • Ui Unifi Network Video Recorder G2 Pro Firmware < 5.1.12
  • Ui Unifi Dream Machine Beast Firmware < 5.1.11
  • Ui Unas 2 Firmware < 5.1.10
  • Ui Unas 4 Firmware < 5.1.10
  • Ui Unas Pro Firmware < 5.1.10
  • Ui Unas Pro 4 Firmware < 5.1.10
  • Ui Unas Pro 8 Firmware < 5.1.10
Patched Versions
  • Ui Unifi Os Server 5.0.8
  • Ui Unifi Cloud Gateway Industrial Firmware 5.1.12
  • Ui Unifi Dream Machine Firmware 5.1.12
  • Ui Unifi Dream Machine Pro Firmware 5.1.12
  • Ui Unifi Dream Machine Special Edition Firmware 5.1.12
  • Ui Unifi Dream Machine Pro Max Firmware 5.1.12
  • Ui Enterprise Fortress Gateway Firmware 5.1.12
  • Ui Unifi Dream Wall Firmware 5.1.12
  • Ui Unifi Dream Router Firmware 5.1.12
  • Ui Unifi Dream Router 7 Firmware 5.1.12
  • Ui Unifi Express 7 Firmware 5.1.12
  • Ui Unifi Network Video Recorder Firmware 5.1.12
  • Ui Unifi Network Video Recorder Pro Firmware 5.1.12
  • Ui Unifi Network Video Recorder Instant Firmware 5.1.12
  • Ui Enterprise Network Video Recorder Firmware 5.1.12
  • Ui Unifi Cloud Gateway Ultra Firmware 5.1.12
  • Ui Unifi Cloud Gateway Max Firmware 5.1.12
  • Ui Unifi Cloud Gateway Fiber Firmware 5.1.12
  • Ui Unifi Dream Router 5g Max Firmware 5.1.12
  • Ui Enterprise Network Video Recorder Core Firmware 5.1.12
  • Ui Unifi Cloud Key Plus Firmware 5.1.12
  • Ui Unifi Cloudkey Firmware 5.1.12
  • Ui Unifi Cloudkey Enterprise Firmware 5.1.12
  • Ui Unifi Network Video Recorder G2 Firmware 5.1.12
  • Ui Unifi Network Video Recorder G2 Pro Firmware 5.1.12
  • Ui Unifi Dream Machine Beast Firmware 5.1.11
  • Ui Unas 2 Firmware 5.1.10
  • Ui Unas 4 Firmware 5.1.10
  • Ui Unas Pro Firmware 5.1.10
  • Ui Unas Pro 4 Firmware 5.1.10
  • Ui Unas Pro 8 Firmware 5.1.10
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🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References